Seaport oracle is an oracle which implement (SIP7)[https://github.com/ProjectOpenSea/SIPs/blob/main/SIPS/sip-7.md] sub-standard 3.
SIP7 allows extra features to be provided to users via signatures off-chain.
In order to use this oracle, orders must set the zone address to [TODO add deployed address].
Additionally other parameters might be required for each feature.
Supported orders can be cancelled by signing an EIP712 message and post it to the oracle API. Multiple orders can be cancelled in a single batch request.
The user must provide a signature of the array of order hashes to be cancelled.
Supported orders can be replaced by providing a new order with the same offerer and the previous order's hash in the salt field of the replacing order.
Multiple orders can be replaced in a single batch request.
Supported orders cannot be filled with flagged tokens.
To enable this feature the order zoneHash field must be set to 0x8000000000000000000000000000000000000000000000000000000000000000
Cancellations are published at the endpoint GET /cancellations.
Each cancellation becomes active after the latest fulfillment signature for that order has expired.
The complete API documentation can be found at /docs.
- Rate limiting
- Extra validations
- Zone address validation
- Auth for fulfillers (EIP-4361)
- Onchain check for order if already cancelled